Table 99 

 REDUCTION OF PSYCHROMETRIC OBSERVATIONS 



Fahrenheit temperatures 



Values of Ae = 0.000367/>(< - t') (l+ f> ~ 32 ) for p = 30 in. Hg. and 1 in. Hg. 



369 



lin. 



Depres- 

 sion of 

 wet bulb 

 * — *' 30 in. 

 °F. 



in. Hg. in. Hg 



1 0.01079 0.00036 



2 .02157 .00072 



3 .03236 .00108 



4 .04314 .00144 



(See p. 365 for discussion and explanation of table.) 

 Wet-bulb temperature f — °F. 



20 



30 in. 



lin. 



in. Hg. in. Hg. 



0.01093 0.00037 

 .02185 .00072 

 .03278 .00109 

 .04370 .00146 



40 



30 in. 1 in. 

 in. Hg. in. Hg. 



0.01107 0.00037 

 .02213 .00073 

 .03320 .00111 

 .04426 .00148 



60 



30 in. 1 in. 

 in. Hg. in. Hg. 



0.01121 0.00038 



.02241 .00074 



.03362 .00112 



.04482 .00150 



80 



30 in. 1 in. 

 in. Hg. in. Hg. 



0.01135 0.00038 

 .02269 .00075 

 .03404 .00113 

 .04539 .00151 



10 

 11 

 12 

 13 

 14 



15 

 16 

 17 

 18 

 19 



20 

 21 

 22 

 23 

 24 



25 

 26 

 27 

 28 

 29 



30 



0.05393 0.00180 0.05463 0.00183 0.05533 0.00185 0.05603 0.00187 0.05673 0.00190 



.06471 .00216 .06556 .00218 .06640 .00221 .06724 .00224 .06808 .00227 



.07550 .00252 .07648 .00255 .07746 .00258 .07844 .00262 .07942 .00265 



.08629 .00288 .08741 .00292 .08853 .00295 .08965 .00299 .09077 .00303 



.09707 .00323 .09833 .00327 .09959 .00332 .10086 .00336 .10212 .00340 



0.22132 0.00738 0.22412 0.00747 



.23239 .00775 .23533 .00785 



.24654 .00821 



.25774 .00859 



.26895 .00897 



0.28015 0.00934 

 .29136 .00971 

 .30257 .01009 

 .31377 .01046 

 .32498 .01083 



0.33619 0.01121 

 .34739 .01158 

 .35860 .01195 

 .36980 .01233 

 .38101 .01270 



Depres- 

 sion of 



wet bulb 

 t — f 



"F. 

 1 

 2 

 3 

 4 



5 

 6 

 7 



Wet-bulb temperature f — °F. 



-40 -20 



30 in. 1 in. 30 in. 1 in. 



in. Hg. in. Hg. in. Hg. in. Hg. 



0.010505 0.000353 0.010646 0.000358 

 .021011 .000697 .021291 .000706 

 .031516 .001050 .031937 .001064 

 .042022 .001403 .042582 .001421 



0.052527 0.001756 0.053228 0.001779 

 .063032 .002099 .063873 .002127 



.073538 .002452 

 .084043 .002805 

 .094549 .003149 



.074519 .002485 

 .085165 .002843 

 .095810 .003191 



°F. 



1 

 2 

 3 

 4 



5 

 6 

 7 



0.10926 0.00364 0.11066 0.00369 0.11206 0.00374 0.11346 0.00378 10 



.12018 .00401 .12173 .00406 .12327 .00411 .12481 .00416 11 



.13279 .00442 .13447 .00448 .13616 .00453 12 



.14386 .00479 .14568 .00486 .14750 .00492 13 



.15492 .00517 .15689 .00523 .15885 .00530 14 



0.16599 0.00553 0.16809 0.00560 0.17020 0.00567 15 



.17706 .00590 .17930 .00597 .18154 .00605 16 



.18812 .00627 .19051 .00635 .19289 .00643 17 



.19919 .00664 .20171 .00673 .20423 .00681 18 



.21025 .00701 .21292 .00709 .21558 .00718 19 



0.22693 0.00756 20 



.23827 .00795 21 



.24962 .00832 22 



.26097 .00870 23 



.27231 .00908 24 



0.28366 0.00946 25 



.29501 .00983 26 



.30635 .01021 27 



.31770 .01059 28 



.32904 .01097 29 



0.34039 0.01135 30 



.35174 .01173 31 



.36308 .01210 32 



.37443 .01248 33 



.38578 .01286 34 



0.39222 0.01307 0.39712 0.01323 35 



.40342 .01345 .40847 .01361 36 



.41463 .01382 .41982 .01399 37 



.42584 .01420 .43116 .01438 38 



.43704 .01456 .44251 .01475 39 



0.44825 0.01494 0.45385 0.01513 40 



.45945 .01532 .46520 .01551 41 

 .47066 .01568 .47655 .01588 42 



.48187 .01606 .48789 .01626 43 



.49307 .01644 .49924 .01664 44 



0.50428 0.01681 0.51059 0.01702 45 



.51549 .01718 .52193 .01740 46 



.52669 .01756 .53328 .01778 47 



.54463 .01816 48 



.55597 .01853 49 



0.56732 0.01891 50 



SMITHSONIAN METEOROLOGICAL TABLES 



